Patel A, Kim J, Brown D, Lin H-M, Ouyang Y, Shekane P. Chronic opioid use and mortality outcomes in patients admitted with COVID-19: A retrospective cohort study. J of Opioid Management [Internet]. 2023 Aug. 11 [cited 2024 May 14];19(4):321-7. Available from: https://wmpllc.org/ojs/index.php/jom/article/view/3479